您要查找的是不是：
- SLF (Super Low Frequency) transmitting antenna consists of a grid of long horizontal antenna grounded at each end and can be considered as a loop antenna. 超低频发射天线是一种环天线,了解天线周围的电流分布规律将有助于设计高性能的发射天线,提高天线的辐射能力。
- The technique of electromagnetic waves in SLF (Super Low Frequency) frequency band can be investigated in the light of geophysical theory combined with radio-physical theory. 超低频 (SLF)电磁波技术利用地球物理和无线电物理相结合的原理 ,由人工产生大功率电磁波信号。
- super low frequency therapeutic apparatus 超低频治疗机
- Super low frequencies 超低频
- Design of a Super Low Frequency, Rectangular Pulse High Voltage Power Supply 超低频高压脉冲矩形波电源设计
- A super low frequency signal wave generator controlled by the single chip microcomputer 一种单片机控制超低频任意信号波形发生器
- Two Arithmetics of Analyzing the Current Distribution Around the Super Low Frequency Transmitting Antenna 超低频发射天线周围电流分布情况的两种算法
- WHY THE USE OF SUCH EXTREM LOW FREQUENCIES FOR COMMUNICATION WITH SUBMARINES? 为什么要将极低频无线电用于潜艇通信?
- super low frequency(SLF) 超低频
- At low frequencies, the DC resistance of a given conductor is essentially the same as its AC resistance. 在低频情况下，给定的导体的直流电阻实际上与其交流电阻一样。
- measuring super low frequency 超低频测量
- Side effects like skin rash and conjunctivitis occurred at low frequencies similar to placebo or comparator drugs. 副反应像皮疹，结膜炎发生率较低，类似于安慰剂或者对照用药。
- Super low profile small jick,convenient for delicate work such as fine adjusting or centering of heavy machinery. 安装重物件时，微量调整和调整轴心位置等工作，非常方便。
- Short wave lengths correspond with high frequencies, and long wave lengths to low frequencies. 短波波长和高频相对应，长波波长与低频相对应。
- Handheld microphones usually have their low frequencies intentionally rolled-off. 手持话筒通常有意的做低频衰减。
- super low frequence amplifier 超低频放大器
- Friction is an important factor to affect the super low speed property of continuous rotary electro hydraulic servomotor applied to simulator. 摩擦特性是影响仿真转台用连续回转电液伺服马达超低速性能的重要因素。
- Short wave lengths correspond with high frequencies,and long wave lengths to low frequencies. 短波波长和高频相对应，长波波长与低频相对应。
- At low frequencies, such as 10 per sec., pulsation is sensed rather than vibration. 在低频率(譬如每秒十次)时, 所感觉到的是脉冲而非振动。
- In electronics, undesirable low frequency currents interfering with a desired signal, and usually caused by a poorly screened alternating mains supply. 在电子学领域，一种不希望发生的低频电流，它干扰所要求的信号。通常这种现象是由于交流供电线路屏蔽不良引起的。
